import axios from 'axios';
import { Notification, MessageBox, Message, Loading } from 'element-ui';
import store from '@/store';
import { getToken } from '@/utils/auth';
import errorCode from '@/utils/errorCode';
import { tansParams, blobValidate } from '@/utils/tencreat';
import { saveAs } from 'file-saver';

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8';
// 创建axios实例
const service = axios.create({
	// axios中请求配置有baseURL选项，表示请求URL公共部分
	baseURL: process.env.VUE_APP_BASE_API,
	// baseURL: "http://139.159.188.11:6061/gyxShop",
	// 超时
	timeout: 100000,
});
// request拦截器
service.interceptors.request.use(
	(config) => {
		// 是否需要设置 token
		const isToken = (config.headers || {}).isToken === false;
		if (getToken() && !isToken) {
			config.headers['Authorization'] = 'Bearer ' + getToken(); // 让每个请求携带自定义token 请根据实际情况自行编辑
		}
		// get请求映射params参数
		if (config.method === 'get' && config.params) {
			let url = config.url + '?';
			for (const propName of Object.keys(config.params)) {
				const value = config.params[propName];
				var part = encodeURIComponent(propName) + '=';
				if (value !== null && typeof value !== 'undefined') {
					if (typeof value === 'object') {
						for (const key of Object.keys(value)) {
							let params = propName + '[' + key + ']';
							var subPart = encodeURIComponent(params) + '=';
							url += subPart + encodeURIComponent(value[key]) + '&';
						}
					} else {
						url += part + encodeURIComponent(value) + '&';
					}
				}
			}
			url = url.slice(0, -1);
			config.params = {};
			config.url = url;
		}
		//去除input框手动删除后导致值为''字符串
		if (
			config.method === 'post' &&
			!config.data instanceof FormData &&
			typeof config.data !== 'string' &&
			typeof config.data !== 'number' &&
			!Array.isArray(config.data) &&
			config.data !== undefined
		) {
			config.data = Object.keys(config.data).reduce((a, c) => {
				if (config.data[c] !== '') {
					a[c] = config.data[c];
				}
				return a;
			}, {});
		}
		return config;
	},
	(error) => {
		Promise.reject(error);
	}
);

// 响应拦截器
service.interceptors.response.use(
	(res) => {
		// 未设置状态码则默认成功状态
		const code = res.data.code || 200;
		// 获取错误信息

		const msg = errorCode[code] || res.data.msg || errorCode['default'];
		if (code === 401) {
			localStorage.removeItem('tags');
			MessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
				confirmButtonText: '重新登录',
				cancelButtonText: '取消',
				type: 'warning',
			}).then(() => {
				const supplier = store.getters.roles.some((name) => name === 'supplier');
				const mallStore = store.getters.roles.some((name) => name === 'mallStore');
				store.dispatch('LogOut').then(() => {
					localStorage.removeItem('tags');
					if (supplier) {
						location.href = '/supplier';
						return;
					} else if (mallStore) {
						location.href = '/mallStore';
						return;
					}
					location.href = '/admin';
				});
			});
		} else if (code === 500) {
			Message({
				message: msg,
				type: 'error',
			});
			return Promise.reject(new Error(msg));
		} else if (code !== 200) {
			Notification.error({
				title: msg,
			});
			return Promise.reject('error');
		} else {
			return res.data;
		}
	},
	(error) => {
		console.log('err' + error);
		let { message } = error;
		if (message == 'Network Error') {
			message = '后端接口连接异常';
		} else if (message.includes('timeout')) {
			message = '系统接口请求超时';
		} else if (message.includes('Request failed with status code')) {
			message = '系统接口' + message.substr(message.length - 3) + '异常';
		}
		Message({
			message: message,
			type: 'error',
			duration: 5 * 1000,
		});
		return Promise.reject(error);
	}
);

let downloadLoadingInstance;

// 通用下载方法
export function download2(url, params, filename, config) {
	downloadLoadingInstance = Loading.service({ text: '正在下载数据，请稍候', spinner: 'el-icon-loading', background: 'rgba(0, 0, 0, 0.7)' });
	return service
		.post(url, params, {
			transformRequest: [
				(params) => {
					return tansParams(params);
				},
			],
			headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
			responseType: 'blob',
			...config,
		})
		.then(async (data) => {
			const isLogin = await blobValidate(data);
			if (isLogin) {
				const blob = new Blob([data]);
				saveAs(blob, filename);
			} else {
				const resText = await data.text();
				const rspObj = JSON.parse(resText);
				const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode['default'];
				Message.error(errMsg);
			}
			downloadLoadingInstance.close();
		})
		.catch((r) => {
			console.error(r);
			Message.error('下载文件出现错误，请联系管理员！');
			downloadLoadingInstance.close();
		});
}
// 通用下载方法
export const download3 = (url, params, filename, config) => {
	downloadLoadingInstance = Loading.service({ text: '正在下载数据，请稍候', spinner: 'el-icon-loading', background: 'rgba(0, 0, 0, 0.7)' });
	return service
		.post(url, params, {
			// params:JSON.stringify(params),
			// transformRequest: [(params) => { return tansParams(params) }],
			headers: { 'Content-Type': 'application/json;charset=utf-8' },
			responseType: 'blob',
			...config,
		})
		.then(async (data) => {
			const isLogin = await blobValidate(data);
			if (isLogin) {
				const blob = new Blob([data]);
				saveAs(blob, filename);
			} else {
				const resText = await data.text();
				const rspObj = JSON.parse(resText);
				const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode['default'];
				Message.error(errMsg);
			}
			downloadLoadingInstance.close();
		})
		.catch((r) => {
			console.error(r);
			Message.error('下载文件出现错误，请联系管理员！');
			downloadLoadingInstance.close();
		});
};
export default service;
